Push-on lighting unit



J. c. SMITH 1,787,495:-

PUSl-I-ON LIGHTING UNIT Filed Aug. 25. 1928 Jan. 6,1931.

lbd' 5772 6870 Patented Jan. 6, 193 1 i g I if i T T UNIT sA'" ATENT OFFICE OHN o. SMITH, or ormon, PENNSYLVANIA rUsH-ON LIGHTING UNIT:

Application filed August .25, 1928. Serial No. 302,077.

. This invention relates to lighting fixtures ported by a nut 7 threaded on the pipe or which may be termed a pushon lighting conduit againsttheplate 3. unit, and has reference more particularly to A plurality of supporting rods'8, or a pair ceiling or porch lights. f of screws, are engaged through openings 9 '5 The object of the invention'isto provide-a in the plate 3 with their heads 10 resting on 55 pushron lighting unit in which the globe is the inner or top face of the plate and having made with an integral collar portion of glass shoulders or enlargementsll thereon engagto displace the usual ceiling or porch ring ing the outer or bottom face of the plate so and which is so formed integral as to pro to securely mount the rods or screws '8 in 10 vide an annular recess and an adjacent shoulposition. Of course, the enlargements. 11 60 der to receiveattaching means which spring may be suitably formed on the rods as by into the same for detacliably retaining? or pressing them from the material of the rod or supportingthe globe in position v n th otherwise fasteningthe same thereto. That light socket and electric bulb. 1 s, they maybe separate parts secured to the.

A further object of the invention is to prorods or threaded thereon, as, will be obvious. 65

' Vide novel adjustable means for supporting The rods 8 serve as supporting means for a the socket and bulb from a ceiling or wall, light socket l2. o'fporcelain or other'suitable said means also frictionally supporting the material. For this purpose, there is provided globe and permitting convenient application a Pl e 13 S o n in the form 01 aring to and removal thereoffor cleaning or other Winch the upper flanged portion of the .70 p I socket'is detachably secured by bolts, screws, I A th bj t i t id Supporting or the like, as" indicated at 14, so that the means for the socket and bulb and also the socket is suspended therefrom. This p a l b hi h may b nd d f th b t, has diametrically opposite extensions or're- {3011 late, of {L ceiling o junction box 033; ClUCQCl TS OI DlOIlS 15 provided slots 16' 75 special plate of springy or flexible material adapted .to receive the rods 8 to permit a provided for this purpose in the wall or 'c eil P t? Socket to e centmhzcd- The Plate ing and carried by the c nduit f r th l c is supported by nuts 17 threaded on the rods trio wires. r and on which theplates bear beneath the slots lVith the above and other objects in view, Y P li g n he pla e- Obviously, the slots so the invention consists in certain novel struc- 1 pe lng '1 ac mnmodate diiierent spacing tures and arrangement of parts to be herein-' 01 the rods 8 and the nuts 17 serve to permit after more particularly specified and pointed adjus m nt f the position of the socket verout in the clai tically or horizontally along the rods.

i In the, acc'o npanying drawings AlSO, threaded 011 the IOdS 8 are COllELlS 18 85 Fig. 1 is a sectional'view of a lightingunit preferabl knurled andformed of some relaconstructed in accordance with. the invention, tively soft non-abrading material such as and f fiber, brass, aluminum, or the like. These Fig. 2 is a sectional view taken on the socmay be slmply slipped on to the rods or 40 tion'line-2-2 of Figure 1. threadedly engaged therewith and are sup- 90 Referring to the drawings in detail, 3 ported or backed up by lock nuts 19 which are designates a plate which is supported at the threaded on the rods 8 and prevent the collars wall or ceiling and may be the bottom ofa from shifting when once adjusted. The ceiling or junction box, in which case it is of socket12 takes an electric light bulb 20, and relatively stiff metal. However, this plate a glass globe 21 is adapted to enclose the bulb 95 may be of a springy or flexible material com and other parts of the device. Instead of nected andsupported independently of the forming this globe with the usual neck porceiling box, as by means of "an opening 4 'tion to take in the ceiling or porch ring of formed therein centrally to engage the conthe usual type as generally formedof metal, duit 5 for the electric Wire 6 and then supthe globe has an integral collar or ring pore ice convexed inwardly to a greater degreevthan' the portion 26. The portion 26 thus provides tion 22 enlarged in a direction opposite to that of the globe and having a portion 23. which engages the wall or ceiling, thus completely enclosing the supporting elements of the globe, wiring, socket, and bulb. The reduced intermediate portion or neck of the globe, designated. generally at 24, is formed at its juncture with the upwardly sloping. top portion 25 of the globe with an annular in-' wardly convexed portion.26which'isof concavo-convex cross section.

vex cross section but is 'convexed outwardly on a reverse or ogee curve with respect to the portion 26. A still further reverse curve is formed providing an inwardly convex portion 28 between the part 27 and the ring 22 an internal annular portion rounded oi convexed on its inner face in the direction of the axis of the bulb and globe. The portions 27 and 28 form an annular internal concavity and an annular internalshoulder by reason of the greater inward pro ection of the part 28, said shoulder'being designated at 29am cuinferential annular groove'thus facing inwardly and downwardly at the cirbetween the'coiivolutions26 and 28.

The purpose of this formation will be readily-apparent in Figure 1 of the drawings, as

it will be observed that when the globe is placed in position the portion 28 is snapped over the collars 18 so that the. latter will engage the shoulder 29 and support the globe with its collar portion engaging the wallet ceiling and enclosing the interior partshere tofore referredto However, the globe 'may 'lars 18. This may be readily done for cleanobtaining access 1-to the interior parts for be readily detachedior removed by snappi ng the shoulder 29 and portion 28 over the coling the globe'oii for other purposes, such as repair, adjustment or replacement of the bulb. The application of the globeis-accomplished by simply pushing the globe over the retaining or supporting means by which it is frictionally held. It may be pointed out that where the plate 3- is-relatively stiff, the rods 8 are given a certain limited amount of freedom in swinging or made resilient or springy, but where the plate'gis springy or of resilient material or allowed, to flex by reason of itsrelative thinness, thelrods 8 may be stiff orof a rigid character. Of course, the parts need not be made-in-theexact form shown, as the plate 13 may be of other shape and any desired number of rods 8 may be provided as shall be found expedient.

Attention is also invited to the fact that the device'may be used for holding odd shapediglobes on side walls as well as on ceilings, .it being understood that I do. not

desire to be restricted to the form of globe Adjacent to orv above this, the neck portion is formed with an outward extension 27 also ofconcavo-conprovided or fixture shown, nor the use thereof in connection with a ceiling light.

,VVhile I have shown and described my iiivention in a preferred form, I am aware that various changes and modifications may be made therein without departing from the principles of the invention, the scope of which may be determined by referenceto' the appended claims.

- 1- claimas my invention:

,1. A lighting fixture of the class described,

comprising 'a. globe having a reduced neck portion and an enlarged collar portion formed therewith," the neck portion having an internal groove forming a shoulder with .areduced convolution adjacent thereto toward the collar portion, the shoulder facing the globe proper, a supporting plate,'rods carried by the plate and extending therefrom,

said rods being resiliently separated, and'adj ustable members on the rods over whichthe shoulder is adapted to pass with thereduced convolution andsaid members engaging in the groove; j j

'2. A lighting fixture of the class described,

comprising a globe having a reduced neck portion and an enlarged collar portion formed therewith, the neck portion having an in'{ ternal groove forming a shoulder with areduced" convolution adjacent thereto toward the collar portion, the shoulder facing the globe proper, a supporting plate, rods car- 'ried by the'plate at one endof each and extending therefrom in substantially parallel relation, said rods being adapted to be sprung therewith, the neck portion having, aninternal groove forming a. shoulder with a reduced convolution adjacentthereto toward the collar portion, the shoulder facing the globe proper, a supporting plate, rods carried by the plate at one end of each and extending therefrom in substantially parallel relation, said. rods being adapted to be spruugtoward each other and to separate when released, nonabradiiig collars adjusta bly supported on the V rods over which the reduced convolution is adapted to; be frictionally engaged, whereby the globe will be supported by engagement ofthecollars in the groove by the shoulder, a plate mounted on the rods so as to permit movement of the latter in applying andremoving-the globe, and a lamp socket carried by the plate. r i V e. A lighting fixture of the class described,

comprising a globe having a reduced neck portion and an enlarged collar portion formed therewlth, the neck portion havlng an in.-

ternal groove forming a shoulder with a re--' duced convolution adjacent thereto toward the collar portion, the shoulder facing the globe proper, a supporting plate, rods carried by the plate at one end ofeachfiand extending therefrom in substantially parallel relation, said rods being adapted to be sprung toward each other and to separate when released, non-abrading'collars adjustably sup- .portedon the rods over which the reduced convolution is adapted to befrictionally engaged, whereby the globe will be supported by engagement of the collars in the groove by l the shoulder, a plate having slots vreceiving the rods therethrough for relative movements, j

means adjustably supporting the plate on the rods in the collar portion of the globe, and a lamp socket carried by the plate.

5. In alighting fixture of the class de scribed and n combination, a globe having an annular internal shoulder and an annular internal groove adjacent; said shoulder, a

plurality of rods mounted for resilient relative movementtransversely of their axes,-and' I adjustable means on said rods engageable in having a plurality said groove for supporting said globe.

6. In a lighting fixture of the class described and in combination, a globe having an annular internal shoulder and an annular internal groove adjacent said shoulder, a plurality of rods mounted for resilient relative movement transversely o'ftheir axes, and,

adjustable means on said rods symmetrical with respect to the axes thereof and engageable in said groove for supporting said globe.

'7. In a lighting fixture of the class described and in combination, a globe having an annularinternal shoulder and an annular internal groove adjacent said shoulder, a plurality of rods mounted for resilient relative movement transversely of their axes, and a member threaded on each of sald rods and engageable in said groove for retaining said globe. V

8. In a lighting fixture of the class described and in combination, a globe having an internal annular shoulder and an annular groove adjacent thereto, a flexible plate, a plurality of rods'secured to said plate and movable relative to each other by means of the flexing of said plate, means on said rod and symmetrical with respect to the axes thereof for engaging said groove and supporting said globe, and asecond plate for supporting a lamp socket, said second plate of slots through which extend said rods for supporting said second plate.

JOHN G. SMITH. 

